北京邮电大学学报

  • EI核心期刊

北京邮电大学学报 ›› 2006, Vol. 29 ›› Issue (6): 36-39.doi: 10.13190/jbupt.200606.36.jiangzh

• 论文 • 上一篇    下一篇

多用户发送系统中智能天线的应用研究

蒋 峥,杨大成   

  1. 北京邮电大学 无线通信中心, 北京 100876
  • 收稿日期:2005-11-02 修回日期:1900-01-01 出版日期:2006-12-30 发布日期:2006-12-30
  • 通讯作者: 蒋 峥

A Study of Smart Antennas Used in the Multiuser Transmission System

JIANg Zheng , YANG Da-cheng   

  1. Radio Communication Center, Beijing University of Posts and Telecommunications, Beijing 100876,China
  • Received:2005-11-02 Revised:1900-01-01 Online:2006-12-30 Published:2006-12-30
  • Contact: JIANg Zheng

摘要:

给出在时分双工(TDD)系统下,智能天线与多用户发送(MUT)技术联合使用的系统模型.此模型采用智能天线技术对抗空间角度干扰,采用MUT技术消除信道中的多址干扰(MAI)和符号间干扰(ISI).在四相相移键控(QPSK)调制方式下通过时分同步码分多址(TD-SCDMA)系统仿真,表明这种模型在空域环境下比独立使用多用户发送(MUT)系统具有更好的性能.

关键词: 时分双工码分多址, 智能天线, 多用户发送, 信道估计

Abstract:

A novel multiuser transmission (MUT) model is developed. In this model, the smart antennas method is combined the multiuser transmission. The smart antennas are used to eliminate the space interference and the MUT is used to mitigate the multiple-access interference (MAI) and the inter-symbol interference (ISI). The simulation in the time division–synchronous code division multiple access(TD-SCDMA) system shows that the proposed system model can achieve a better performance than the model which only uses MUT method in the spatial domain environment.

Key words: time division-synchronous code division multiple access, smart antennas , multiuser transmission, channel estimation

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